OBJECTIVES To demonstrate that patients with Prolonged Vegetative State (PVS) can show signs of improvements and important changes and, consequently, to strengthen the necessity to evaluate them with long-term serial follow-ups. SETTING Rehabilitation of patients with severe traumatic brain injury (TBI). PARTICIPANTS Two people with severe TBI discharged after a long period of inpatient reh...

Understanding long-term persistence and variability in species populations can help to predict future survival, growth and distribution; however, sustained observations are exceedingly rare. We examine and interpret a remarkable record of the calcareous brown alga Padina pavonica (Phaeophyceae) at its northern limit on the south coast of England (50°N, 1-3°W) from 1680 to 2014, which is probabl...

Social interactions are widely recognized as a potential influence on risk-related behaviors.We present a mediation model in which social interactions (classified as formal= informal and generic=fire-specific) are associated with beliefs about wildfire risk and mitigation options, which in turn shape wildfire mitigation behaviors. We test this model using survey data from fire-prone areas of Co...

Factors influencing the distribution and abundance of black-tailed prairie dog (Cynomys ludovicianus) colonies are of interest to rangeland managers because of the significant influence prairie dogs can exert on both livestock and biodiversity. We examined the influence of 4 prescribed burns and one wildfire on the rate and direction of prairie dog colony expansion in shortgrass steppe of south...

The basal metabolism and daily energy consumption of eight cases of the persistent vegetative state were low. Some received excessive energy and inappropriate essential nutrient infusions.

Matthew J. Helmers, Department of Agricultural and Biosystems Engineering, Iowa State University Thomas M. Isenhart, Department of Natural Resource Ecology and Management, Iowa State University Michael G. Dosskey, USDA Forest Service, National Agroforestry Center, Lincoln, Nebraska Seth M. Dabney, USDA-ARS National Sedimentation Laboratory, Oxford, Mississippi Jeffrey S. Strock, Department of S...

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I t has been stated in the literature that the vegetative form of the dysentery ameba dies within a few hours outside of its host and forms no cyst. In a study made in 1917, the author has observed, however, that the large vegetative ameba of dysentery is transformed into a smaller vegetative form, and that occasionally it develops in vitro a tetranuclear cyst. Proliferation takes place in feca...